In 2022, the population of Gentry was 54, a 1.89% increase year-by-year from 2021. Previously, in 2021, Gentry's population was 53, a decline of 0.00% compared to a population of 53 in 2020.
The median age in Gentry, MO is 25.5, as per 2021 ACS 5-Year Estimates. Of the total population, 23.40% were under the age of 15, 29.79% aged 15 to 29, 42.55% aged 30 to 64, 4.26% aged 65 to 84, and 0.00% were 85 years of age and older.